After they remove the transmitter implant from the alien, one character crushes it with his boot. A few shots later when they toss it in the trash, it's intact again.
The white van used driven back by Hope at the end of the movie doesn't get blown up while everything within a quarter of a mile is obliterated.
When Wyatt is telling his friends to return the alien to the farm and Cody begins to get angry, there is a red dot from the camera on Wyatt's white tank-top.
Despite the final massive explosion, which leveled the compound and upbraided a large area of land, the van survived untouched.